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Science News for August 31, 2014


New tuberculosis blood test in children is reliable and highly specific

A new blood test provides a fast and accurate tool to diagnose tuberculosis in children, with excellent specificity and similar sensitivity as culture tests. The test features sputum-independent results available within 24 hours after blood sampling, making it a major advance for the diagnosis of tuberculosis in children.

SourceSwiss Tropical and Public Health Institute·JournalThe Lancet Infectious Diseases·DateAug 31, 2014

Discovery reveals how bacteria distinguish harmful vs. helpful viruses

Scientists have discovered that the bacterial immune system can distinguish between harmful and helpful viruses by watching for a specific transcription cue. This adaptation allows bacteria to harness viral genes for their own benefit, offering new insights into the complex relationships between microbes and viruses.

SourceRockefeller University·JournalNature·DateAug 31, 2014

Renal denervation more successful when it includes accessory arteries

Researchers found that complete ablation of main and accessory renal arteries led to greater blood pressure reductions with renal denervation. The procedure was successful in 67% of patients, but incomplete ablation did not significantly impact results. Further investigations are needed to confirm these findings.

SourceEuropean Society of Cardiology·DateAug 31, 2014
Garmin GPSMAP 67i with inReach

Garmin GPSMAP 67i with inReach provides rugged GNSS navigation, satellite messaging, and SOS for backcountry geology and climate field teams.

Understanding and improving the body's fight against pathogens

Scientists from A*STAR's Bioprocessing Technology Institute uncover crucial role of DOK3 and SHP1 in plasma cell development and production. This discovery advances understanding of plasma cells and antibody response, potentially leading to improved treatment for patients with autoimmune diseases like lupus and multiple myeloma.

SourceBiomedical Sciences Institutes (BMSI)·JournalProceedings of the National Academy of Sciences·DateAug 31, 2014
Apple iPhone 17 Pro

Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.

AF mortality and morbidity high at 1 year despite good anticoagulant use

Despite effective oral anticoagulant use, atrial fibrillation patients experience high one-year mortality and morbidity. Statins were found to reduce mortality by one-third, while diuretics increased it by 70%. Hospital readmissions are common, often due to AF or heart failure.

SourceEuropean Society of Cardiology·JournalEuropean Heart Journal·DateAug 31, 2014

A new synthetic amino acid for an emerging class of drugs

EPFL researchers developed a synthetic amino acid that can impact 3D structure of bioactive peptides, enhancing their potency. The amino acid, similar to cysteine, forms bridges influencing overall structure and function of peptides and proteins.

SourceEcole Polytechnique Fédérale de Lausanne·JournalNature Chemistry·DateAug 31, 2014

Scientists get set for simulated nuclear inspection

Experts from around the world will participate in a simulated nuclear inspection in Jordan to prepare for Comprehensive Nuclear-Test-Ban Treaty (CTBT) on-site inspections. The exercise aims to refine and test monitoring techniques, ensuring scientists are ready to investigate possible nuclear explosions.

SourceIOP Publishing·JournalPhysics World·DateAug 31, 2014
Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C)

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C) keeps Macs, tablets, and meters powered during extended observing runs and remote surveys.

Invisible blood in urine may indicate bladder cancer

Researchers at the University of Exeter Medical School have found that invisible blood in urine may be an early warning sign of bladder cancer. The risk of bladder cancer was 1.6% in people over 60 with invisible blood in their urine.

SourceUniversity of Exeter·JournalBritish Journal of General Practice·DateAug 31, 2014

A new way to diagnose malaria

Researchers have developed a new malaria diagnosis technique using magnetic resonance relaxometry (MRR) to detect hemozoin crystals produced by the Plasmodium parasite. This method offers a more reliable and minimally invasive way to diagnose malaria, with potential for low-cost field deployment.

SourceMassachusetts Institute of Technology·JournalNature Medicine·DateAug 31, 2014

Mixing in star-forming clouds explains why sibling stars look alike

A study published in Nature found that the chemical uniformity of stars in the same cluster is due to turbulent mixing in star-forming clouds. This mixing occurs before much of the gas has turned into stars, resulting in nearly identical chemical signatures among sibling stars.

SourceUniversity of California - Santa Cruz·JournalNature·DateAug 31, 2014
SAMSUNG T9 Portable SSD 2TB

SAMSUNG T9 Portable SSD 2TB transfers large imagery and model outputs quickly between field laptops, lab workstations, and secure archives.

Drinking tea reduces non-CV mortality by 24 percent

A study of 131,401 people found that tea drinkers had a lower risk profile for cardiovascular disease and significantly lowered the risk of non-CV death. The study also revealed that coffee consumption was associated with a higher CV risk profile, particularly among smokers.

SourceEuropean Society of Cardiology·DateAug 31, 2014

New method predicts optimal number and location of AEDs

A new method predicts the optimal number and location of automated external defibrillators (AEDs) in public places to prevent out-of-hospital cardiac arrests. The study suggests that approximately 350 AEDs are needed in Paris to achieve optimal prevention, with a focus on geographic optimization modeling.

SourceEuropean Society of Cardiology·DateAug 31, 2014

Batteryless cardiac pacemaker is based on automatic wristwatch

The new pacemaker eliminates the need for battery replacement and leads, tackling two major disadvantages of traditional pacemakers. Researchers successfully tested the system in domestic pig experiments, allowing for batteryless overdrive-pacing at 130 beats per minute.

SourceEuropean Society of Cardiology·DateAug 31, 2014
Aranet4 Home CO2 Monitor

Aranet4 Home CO2 Monitor tracks ventilation quality in labs, classrooms, and conference rooms with long battery life and clear e-ink readouts.

Changing global diets is vital to reducing climate change

A new study suggests that changing global diets can mitigate greenhouse gas emissions from food production. The study reveals that a shift towards healthier diets, reduced food waste, and sustainable agricultural practices can significantly reduce the environmental impact of food production. By adopting balanced eating habits, includin...

SourceUniversity of Cambridge·JournalNature Climate Change·DateAug 31, 2014

Renal denervation reduces recurrent AF after ablation

Researchers found that renal denervation significantly reduced the likelihood of recurrent atrial fibrillation in patients with moderate to severe resistant hypertension. The procedure was shown to be beneficial in reducing blood pressure, with significant reductions in systolic and diastolic blood pressure observed.

SourceEuropean Society of Cardiology·JournalEuropean Heart Journal·DateAug 31, 2014

Local anesthetic for TAVI as safe and effective as general anesthetic

A study from the FRANCE 2 registry found that local anesthesia for transcatheter aortic valve implantation (TAVI) is as safe and effective as general anesthesia. Outcomes for patients were identical regardless of the type of anesthesia used, with improved post-procedural patient recovery seen with local anesthesia.

SourceEuropean Society of Cardiology·DateAug 31, 2014

Why sibling stars look alike: Early, fast mixing in star-birth clouds

Astronomers used computational simulations to show that rapid mixing in cloud formation creates uniform chemical composition among born stars, supporting the idea of 'chemical tagging' and potential discovery of Sun's siblings. The study also found that even clouds without many stars produce similar abundances.

SourceUniversity of California High-Performance AstroComputing Center·JournalNature·DateAug 31, 2014
Apple iPad Pro 11-inch (M4)

Apple iPad Pro 11-inch (M4) runs demanding GIS, imaging, and annotation workflows on the go for surveys, briefings, and lab notebooks.

Sugar substance 'kills' good HDL cholesterol, new research finds

Researchers at the University of Warwick discovered that methylglyoxal damages 'good' HDL cholesterol, reducing its protective function against heart disease. Low levels of HDL are linked to increased risk of heart disease, and MG levels can be managed through diet and supplements.

SourceUniversity of Warwick·JournalBMJ Open·DateAug 31, 2014

Energy drinks cause heart problems

A study found that energy drinks cause heart problems, including angina, cardiac arrhythmia, and sudden death. The researchers analyzed adverse events reported to the French agency for food safety between 2009 and 2012 and found that 95 of the reported events had cardiovascular symptoms.

SourceEuropean Society of Cardiology·DateAug 31, 2014

Memory in silent neurons

Neuroscientists found that sensory stimuli, even when neurons are silent, can generate long-term synaptic strengthening. This discovery challenges traditional models of synaptic plasticity and has implications for understanding learning and memory, as well as therapeutic possibilities.

SourceUniversité de Genève·JournalNature·DateAug 31, 2014
Nikon Monarch 5 8x42 Binoculars

Nikon Monarch 5 8x42 Binoculars deliver bright, sharp views for wildlife surveys, eclipse chases, and quick star-field scans at dark sites.

Antarctic sea-level rising faster than global rate

A new study reveals that the sea-level around Antarctica's coast has risen by 2cm more than the global average of 6cm due to fresh water from melting glaciers. This excess freshwater reduces ocean salinity and is corroborated by ship-based studies.

SourceUniversity of Southampton·JournalNature Geoscience·DateAug 31, 2014

Obese youths have a nearly 6 fold risk of hypertension

The study found that obese boys had a nearly six-fold increased risk of hypertension compared to normal weight boys, while obese girls had a more than four-fold greater risk. General and abdominal adiposity are already significantly associated with prehypertension and hypertension in children and adolescents.

SourceEuropean Society of Cardiology·DateAug 31, 2014